I would say that in the texts I've read (and your own snippet here in the monastery) Schwartzian Transforms are characterized by using an inorder function that accesses part of a wrapper containing the precomputed keys, whereas GRTs are characterized by not having an explicit inorder function at all.

I don't believe that the GRT can be sufficiently generalized in any practical sense to cover all problems, hence knowing both manifest map-sort-map strategies (and inventing others) is probably the best meta-strategy.

I couldnt agree more. (And stated something like this at the end of my post, although not in so many words)

Oh and thank you for introducing such an interesting technique to me and the community as a whole. I use it all the time.

PS - It would be really cool if you retitled your snippet Schwartzian Transform to "Schwartzian Transform (ST)" so that we could link to it via [ST] ;-) Or even write a new node explaining it a bit, you know straight from the horses mouth so to speak. But perhaps you dont have enough time?

Went to join the gridlock to see it
Held an eclipse party
Watched a live feed
I cn"t see tge kwubosd to amswr thus
I tried to see it, but 8000 miles of rock got in the way
What eclipse?
Wanted to see it, but they wouldn't reschedule it
Read the book instead